Absorption coefficient as a function of resistance for optical germanium at 10.6microm

Applied Optics
E D Capron, O L Brill

Abstract

Room-temperature transmittance measurements at 10.6 microm were made of germanium single-crystal samples. The samples were cut from very large doped single-crystal slabs that had been grown from +40-?-cm charge material of unknown purity for use as infrared windows and image-forming elements. The dependence of the absorption coefficient on sample resistivity was calculated from measured transmittances of ninety-two samples with resistivities ranging from 0.9 ?-cm to 57 ?cm. Maximum transmittance at 10.6 microm was obtained for the samples that were doped to a resistivity of 5-10 ?-cm and n-type conductivity.

References

Mar 1, 1971·Applied Optics·P A Young

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Citations

May 13, 2009·Optics Express·J BallatoR Rice
Apr 15, 1982·Applied Optics·C J HutchinsonA Pitt
Nov 1, 1977·Applied Optics·M Hass, B Bendow
Nov 1, 1973·Applied Optics·P J Bishop, A F Gibson

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